The tile walls echo the wet slapping sounds of his meaty cock hitting his palm, a symphony of solo satisfaction. He leans back, his abs contracting as he fucks his fist, his massive dick disappearing and reappearing with each thrust. His body tenses, his cock swelling as he groans, unleashing a torrent of hot cum into the water, the milky fluid swirling around him like a perverse, post-orgasmic vortex.